CN218907409U - Floor structure and vehicle in automobile body - Google Patents

Abstract

The utility model provides a vehicle body middle floor structure and a vehicle, wherein the vehicle body middle floor structure comprises a middle floor body and a middle floor connecting plate which are overlapped in the front-back direction along the whole vehicle X, a body reinforcing plate is arranged below the middle floor body, and a first cavity is formed between the body reinforcing plate and the middle floor body in a surrounding manner; a connecting plate reinforcing plate is arranged below the middle floor connecting plate, and a second cavity is formed between the connecting plate reinforcing plate and the middle floor connecting plate in a surrounding shape. According to the vehicle body middle floor structure, the middle floor reinforcing plate and the connecting plate reinforcing plate are arranged, so that the structural strength of the middle floor is improved, the vibration sensitivity is reduced, the first cavity is formed between the body reinforcing plate and the middle floor body in an enclosing mode, and the second cavity is formed between the connecting plate reinforcing plate and the middle floor connecting plate in an enclosing mode, vibration excitation transmitted by a power assembly, a transmission system, a road surface and the like can be effectively attenuated, and the vibration of the middle floor is further reduced.

Description

Floor structure and vehicle in automobile body

Technical Field

The utility model relates to the technical field of vehicle parts, in particular to a floor structure in a vehicle body. Meanwhile, the utility model also relates to a vehicle provided with the floor structure in the vehicle body.

Background

With the rapid development of the automobile industry, market competition is increasingly strong, and the requirements on the safety performance of the automobile body are also higher. In the collision process of the vehicle, through proper design, the transmission of load is effectively controlled, and the reasonable absorption of corresponding energy is the key for fundamentally improving the passive safety level of the vehicle. In addition, the performance of the automobile NVH (noise vibration harshness) is also receiving increasing attention from the automobile user, and noise in the automobile affects the comfort and safety of the passengers when the user sits on the automobile. Floor systems (including mid-to-rear floor sheet metal systems) are important barriers to the transmission of road and tire noise into the vehicle.

The middle floor is the middle part of the vehicle body floor, the position is positioned at the middle position in the longitudinal direction of the vehicle body, the physical index is positioned at the anti-node position of the floor mode, and the position is generally high in vibration sensitivity. In addition, the existing middle floor is limited by the structure thereof, so that the intensity is low, vibration is easily generated in response to the excitation transmitted by a power assembly, a transmission system, a road surface and the like, and further noise vibration problem in a vehicle is caused, so that the riding comfort of passengers is not facilitated.

Disclosure of Invention

In view of the above, the present utility model aims to provide a vehicle body middle floor structure, which is beneficial to improving the structural strength of the middle floor and reducing the vibration response sensitivity thereof.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a middle floor structure of a vehicle body comprises a middle floor body and a middle floor connecting plate which are overlapped in the front-back direction along the whole vehicle X;

a body reinforcing plate is arranged below the middle floor body, and a first cavity is formed between the body reinforcing plate and the middle floor body in a surrounding manner; the lower part of the middle floor connecting plate is provided with a connecting plate reinforcing plate, and a second cavity is formed between the connecting plate reinforcing plate and the middle floor connecting plate in a surrounding shape.

Further, the middle floor body is provided with a first plate surface arranged facing the front upper side of the whole vehicle and a second plate surface arranged facing the rear upper side of the whole vehicle, and the first plate surface is connected with the second plate surface and surrounds an arch shape which is arched upwards along the Z direction of the whole vehicle; the body reinforcing plate along the whole car Z to both ends respectively with first face with the second face is connected, first face second face and body reinforcing plate encloses the constitution and forms first cavity.

Further, the middle floor connecting plate is arranged above the front of the whole car, the middle floor connecting plate is connected with one end, far away from the first plate surface, of the second plate surface, and the second plate surface and the middle floor connecting plate enclose an arch downwards arched along the Z direction of the whole car.

Further, be equipped with first strengthening rib structure on the first face, first strengthening rib structure includes along the perpendicular to the direction of first face, the oval pit of undercut, undercut and outline are arched pit, and the at least one in the arch is just being bulged to the upper run and the outline is arched.

Further, be equipped with the second strengthening rib structure on the second face, the second strengthening rib structure includes along the perpendicular to the direction of second face, the annular pit of undercut, upwards bulge and by the cross arch that the annular pit surrounds.

Further, the second reinforcing rib structure further comprises a first strip-shaped protrusion and a second strip-shaped protrusion which are arched upwards along the direction perpendicular to the second plate surface, the first strip-shaped protrusion extends along the Y direction of the whole vehicle, the second strip-shaped protrusion is perpendicular to the first strip-shaped protrusion, the second strip-shaped protrusions are a plurality of protrusions which are arranged along the Y direction of the whole vehicle at intervals, and the interval between every two adjacent second strip-shaped protrusions is different.

Further, two ends of the second plate face along the Y direction of the whole car are respectively connected with the longitudinal beams of the car body on two sides, and two ends of the second plate face along the Y direction of the whole car are arc-shaped which arch towards the longitudinal beams of the car body.

Further, the cross section of the body reinforcing plate on the XZ plane of the whole vehicle is wavy.

Further, a third reinforcing structure is arranged on the body reinforcing plate, and/or arched grooves which arch upwards along the Z direction of the whole vehicle are arranged at the bottom edge of the body reinforcing plate, and the arched grooves are a plurality of arranged at intervals along the Y direction of the whole vehicle;

the third reinforcing structure comprises at least one of an elliptical protrusion which is arched upwards along the direction perpendicular to the body reinforcing plate, and a protrusion which is arched upwards and has an outer contour.

Compared with the prior art, the utility model has the following advantages:

according to the vehicle body middle floor structure, the middle floor reinforcing plate and the connecting plate reinforcing plate are arranged, so that the structural strength of the middle floor is improved, the vibration sensitivity of the middle floor is reduced, the first cavity is formed between the body reinforcing plate and the middle floor body in an enclosing mode, the second cavity is formed between the connecting plate reinforcing plate and the middle floor connecting plate in an enclosing mode, vibration excitation transmitted by a power assembly, a transmission system, a road surface and the like can be effectively attenuated, and the vibration of the middle floor is further reduced.

In addition, through making the second face be the arc that arches to the direction of automobile body longeron along whole car Y to the both ends, be favorable to promoting the structural strength of the hookup location of second face and automobile body longeron to promote the welding area of second face and automobile body longeron, and then promote the joint strength of second face and automobile body longeron.

In addition, the cross section of the body reinforcing plate on the XZ plane of the whole vehicle is wavy, so that the structural strength of the body reinforcing plate is improved.

Another object of the present utility model is to propose a vehicle provided with a floor-in-body structure as described above.

According to the vehicle, due to the arrangement of the floor structure in the vehicle body, the noise and vibration problem in the vehicle can be reduced, a quiet and comfortable driving space is created for the vehicle, structural support is provided, and the riding comfort of passengers is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a top view of a floor structure in a vehicle body according to an embodiment of the present utility model;

FIG. 2 isbase:Sub>A cross-sectional view taken along the direction A-A in FIG. 1;

FIG. 3 is a schematic view of the structure from the top of a floor structure in a vehicle body according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the structure of the floor structure in the vehicle body from the bottom perspective according to the embodiment of the utility model;

fig. 5 is an enlarged view of a portion B in fig. 4.

Reference numerals illustrate:

1. a middle floor body; 101. a first panel; 1011. a first pit; 1012. a second pit; 1013. a first protrusion; 102. a second panel; 1021. annular pits; 1022. a cross-shaped protrusion; 1023. a first bar-shaped protrusion; 1024. a second bar-shaped protrusion; 1025. a circular protrusion; 2. a middle floor connecting plate; 3. a body reinforcing plate; 301. an arched groove; 302. a second protrusion; 303. a third protrusion; 4. a connecting plate reinforcing plate; 5. a first cavity; 6. a second cavity; 7. and a vehicle body longitudinal beam.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, the terms "mounted," "connected," and "connected" are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

The present embodiment relates to a vehicle body floor structure, which is integrally constructed, and includes a floor body 1 and a floor connecting plate 2 that overlap in the front-rear direction along the entire vehicle X. Wherein, the body reinforcing plate 3 is arranged below the middle floor body 1, and a first cavity 5 is formed between the body reinforcing plate 3 and the middle floor body 1 in a surrounding shape. A connecting plate reinforcing plate 4 is arranged below the middle floor connecting plate 2, and a second cavity 6 is formed between the connecting plate reinforcing plate 4 and the middle floor connecting plate 2 in a surrounding way.

In this embodiment, the whole vehicle X direction is the longitudinal direction of the vehicle, the whole vehicle Y direction is the width direction of the vehicle, and the whole vehicle Z direction is the height direction of the vehicle. In addition, the plates in this embodiment are preferably connected by welding.

Based on the above overall description, as a preferred embodiment, as shown in fig. 1 to 5, in this embodiment, the middle floor body 1 has a first panel 101 disposed facing upward in front of the entire vehicle, and a second panel 102 disposed facing upward in rear of the entire vehicle, and the first panel 101 is connected to the second panel 102 and encloses an arch shape that arches upward in the entire vehicle Z direction. The two ends of the body reinforcing plate 3 along the Z direction of the whole vehicle are respectively connected with the first plate surface 101 and the second plate surface 102, and the first plate surface 101, the second plate surface 102 and the body reinforcing plate 3 are formed into a first cavity 5 in a surrounding mode. By forming a certain included angle between the first board 101 and the second board 102, the first board and the second board form an arch, so that the structural strength of the middle floor body 1 can be improved by utilizing the characteristic of high arch strength.

Further, as a further preferable example, in the present embodiment, the middle floor connecting plate 2 is arranged facing upward in front of the whole vehicle, the middle floor connecting plate 2 is connected with one end of the second plate surface 102 away from the first plate surface 101, and the second plate surface 102 and the middle floor connecting plate 2 enclose an arch shape that arches downward in the whole vehicle Z direction. As shown in fig. 2, when the second panel 102 is connected, the second panel 102 is bent upwards and then connected with the middle floor connecting plate 2, so that the second panel 102 and the middle floor connecting plate 2 can be surrounded to form a downward arched shape, and the overall structural strength of the middle floor is improved by utilizing the characteristic of high arched strength, and the sensitivity of the middle floor to vibration response is reduced.

It should be noted that, in this embodiment, the first board 101 and the middle floor connecting board 2 are disposed above the front of the whole car, and the second board 102 is disposed above the rear of the whole car, and in the specific implementation, the included angles between the first board 101, the second board 102 and the middle floor connecting board 2 and the YZ plane of the whole car may be set according to the space arrangement condition and the related design requirement during the specific installation, so that the first board 101, the second board 102 and the middle floor connecting board 2 may respectively enclose an arch that arches upwards and downwards.

As further preferred, as shown in fig. 3, a first stiffener structure is provided on the first plate surface 101, the first stiffener structure including an elliptical pit recessed downward in a direction perpendicular to the first plate surface 101, a pit recessed downward and having an arched outer contour, and a protrusion bulging upward and having an arched outer contour.

For convenience of distinction, the oval-shaped pits on the first plate surface 101 are named as first pits 1011, the pits with the outer contour of the arch on the first plate surface 101 are named as second pits 1012, the protrusions with the outer contour of the arch on the first plate surface 101 are named as first protrusions 1013, as shown in fig. 3, three first pits 1011, two second pits 1012, two first protrusions 1013, and preferably, one first pit 1011 with the largest area is preferably 718mm in length, preferably 40mm in width, preferably 18mm in depth, and the other two first pits 1011 are preferably 270mm in length, preferably 40mm in width, preferably 18mm in depth, are provided on the first plate surface 101 in total.

Of course, the first reinforcing rib structure is provided as described above, and is merely a preferred embodiment, and the first reinforcing rib structure may include only one or two of the first recess 1011, the second recess 1012 and the first protrusion 1013, and the number and size of the first recess 1011, the second recess 1012 and the first protrusion 1013 may be designed according to the space arrangement condition and the related strength requirement in the specific embodiment.

As shown in fig. 3, the second plate surface 102 is provided with a second reinforcing rib structure including annular recesses 1021 recessed downward in a direction perpendicular to the second plate surface 102, and cross-shaped protrusions 1022 bulging upward and surrounded by the annular recesses 1021. The annular pit 1021 is close to one end of the second board 102 along the whole car Y direction, and the diameter of the annular pit 1021 is preferably 280mm, and the structural strength of the second board 102 is improved by arranging the second reinforcing rib structure.

As also shown in fig. 3, the second reinforcing rib structure further includes a first bar-shaped protrusion 1023 and a second bar-shaped protrusion 1024 that arch upward in a direction perpendicular to the second panel 102, the first bar-shaped protrusion 1023 extends along the entire vehicle Y direction, the second bar-shaped protrusion 1024 is perpendicular to the first bar-shaped protrusion 1023, the second bar-shaped protrusions 1024 are a plurality of second bar-shaped protrusions 1024 arranged at intervals along the entire vehicle Y direction, and the interval between each two adjacent second bar-shaped protrusions 1024 is different.

As shown in fig. 3, the first strip-shaped protrusions 1023 and the second strip-shaped protrusions 1024 enclose a structure similar to an "feng" shape, and by providing the first strip-shaped protrusions 1023 and the second strip-shaped protrusions 1024, the structural strength of the second board 102 can be improved, and meanwhile, the different arrangement of the strength at different positions on the second board 102 can be realized by making the spacing between each two adjacent second strip-shaped protrusions 1024 different, so that the local frequency avoidance design of the second board 102 is realized, the sensitivity of the second board to vibration response is reduced, and the situation of resonance is avoided. And a plurality of circular bulges 1025 with the diameter of 34mm are further arranged on the second plate surface 102 so as to further improve the structural strength of the second plate surface 102.

As a preferred embodiment, both ends of the second panel 102 in the direction of the entire vehicle Y are connected to the side members 7 on both sides, respectively, and both ends of the second panel 102 in the direction of the entire vehicle Y are formed in an arc shape arched in the direction of the side members 7. As shown in fig. 1 and 3, by making the two ends of the second panel 102 along the Y direction of the whole vehicle arc-shaped, which arch toward the direction of the body longitudinal beam 7, the structural strength of the connection position between the second panel 102 and the body longitudinal beam 7 is improved, the welding area between the second panel 102 and the body longitudinal beam 7 is improved, and the connection strength between the second panel 102 and the body longitudinal beam 7 is improved.

As shown in fig. 2 and 4, in the present embodiment, the body reinforcing plate 3 is disposed below the middle floor body 1, and the middle floor body 1 is also disposed facing the front upper side of the vehicle, and the upper and lower ends of the middle floor body 1 are respectively connected with the second plate surface 102 and the first plate surface 101, so that the first cavity 5 formed by the first plate surface 101, the second plate surface 102 and the body reinforcing plate 3 is triangular, thereby further improving the structural strength of the position. Further, as a further preferable aspect, the cross-sectional shape of the body reinforcing plate 3 on the XZ plane of the whole vehicle may be made wavy, so as to improve the structural strength of the body reinforcing plate 3.

As shown in fig. 2, the cross-sectional shape of the body reinforcing plate 3 in the present embodiment in the XZ plane of the entire vehicle is S-shaped. And in practice the body reinforcing plate 3 may be formed by stamping from a plate having a thickness of 1.2 mm. In addition, as shown in fig. 4, the projection of the top edge of the body reinforcing plate 3 on the XY plane of the whole vehicle can be arched, so as to further improve the structural strength of the body reinforcing plate 3.

As a preferred embodiment, in this embodiment, the third reinforcing structure is disposed on the body reinforcing plate 3, and the bottom edge of the body reinforcing plate 3 is provided with a plurality of arched grooves 301 that arch upward along the entire vehicle Z direction, and the arched grooves 301 are arranged at intervals along the entire vehicle Y direction. And as a further preferred feature the third reinforcing structure comprises an oval protuberance which is upwardly arched in a direction perpendicular to the body reinforcing plate 3, a protuberance which is upwardly arched and has an arched outer profile. By being provided with the third reinforcing structure and the arched groove 301, the structural strength of the body reinforcing plate 3 is facilitated to be improved.

For convenience of distinction, the oval-shaped projection on the body reinforcing plate 3 is named as a second projection 302, the projection on the body reinforcing plate 3 whose outer contour is arched is named as a third projection 303, and as shown in fig. 4, two second projections 302 and third projections 303 are provided in total on the body reinforcing plate 3. In addition, 5 arch-shaped grooves 301 are provided on the bottom plate of the body reinforcing plate 3 in total, including one arch-shaped groove 301 having a larger middle size, and two arch-shaped grooves 301 having smaller sizes on both sides of the larger arch-shaped groove 301. Of course, the provision of the third reinforcing structure and the arched grooves 301 on the body reinforcing plate 3 is only a preferred embodiment, and the reinforcing structure of the form thereof may be provided to enhance the structural strength of the body reinforcing plate in practical implementation.

In addition, as shown in fig. 2 and 4, the connection plate reinforcing plate 4 is disposed under the middle floor connection plate 2, and as shown in fig. 2, the cross-sectional shape of the connection plate reinforcing plate 4 in the XZ plane of the whole vehicle is in a V shape, so that the shape of the second cavity 6 enclosed by the connection plate reinforcing plate 4 and the middle floor connection plate 2 is also in a triangle shape, thereby further improving the structural strength of the position.

The vehicle body middle floor structure in the embodiment is beneficial to improving the structural strength of the middle floor and reducing the vibration sensitivity thereof by being provided with the middle floor reinforcing plate and the connecting plate reinforcing plate 4, and further reduces the vibration of the middle floor by enclosing a first cavity 5 between the body reinforcing plate 3 and the middle floor body 1 and a second cavity 6 between the connecting plate reinforcing plate 4 and the middle floor connecting plate 2, thereby being capable of effectively attenuating the vibration excitation transmitted by a power assembly, a transmission system, a road surface and the like.

Example two

The present embodiment relates to a vehicle in which the in-vehicle floor structure of the first embodiment is provided.

The vehicle of this embodiment is favorable to alleviating the noise vibration problem in the car through being provided with the floor structure in the automobile body of embodiment one, provides structural support for the quiet comfortable driving space of vehicle construction, promotes passenger's riding comfort level.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A floor structure in a vehicle body, characterized in that:

comprises a middle floor body (1) and a middle floor connecting plate (2) which are lapped forwards and backwards along the whole vehicle X;

a body reinforcing plate (3) is arranged below the middle floor body (1), and a first cavity (5) is formed between the body reinforcing plate (3) and the middle floor body (1) in a surrounding manner;

the lower part of the middle floor connecting plate (2) is provided with a connecting plate reinforcing plate (4), and a second cavity (6) is formed between the connecting plate reinforcing plate (4) and the middle floor connecting plate (2) in a surrounding way.

2. The in-vehicle body floor structure according to claim 1, wherein:

the middle floor body (1) is provided with a first plate surface (101) which is arranged facing the front upper side of the whole vehicle and a second plate surface (102) which is arranged facing the rear upper side of the whole vehicle, wherein the first plate surface (101) is connected with the second plate surface (102) and forms an arch shape which is arched upwards along the Z direction of the whole vehicle;

the body reinforcing plate (3) along the whole car Z to both ends respectively with first face (101) with second face (102) are connected, first face (101) second face (102) and body reinforcing plate (3) enclose the constitution and form first cavity (5).

3. The in-vehicle body floor structure according to claim 2, characterized in that:

the middle floor connecting plate (2) is arranged above the front of the whole car, the middle floor connecting plate (2) is connected with one end, far away from the first plate surface (101), of the second plate surface (102), and the second plate surface (102) and the middle floor connecting plate (2) form an arch downwards arched along the Z direction of the whole car.

4. The in-vehicle body floor structure according to claim 2, characterized in that:

be equipped with first strengthening rib structure on first face (101), first strengthening rib structure includes along the perpendicular to direction of first face (101), the oval pit of undercut, undercut and outline are arched pit, and at least one in the arch is upwards bulge and the outline is arched.

5. The in-vehicle body floor structure according to claim 2, characterized in that:

the second plate surface (102) is provided with a second reinforcing rib structure, and the second reinforcing rib structure comprises annular pits (1021) which are downwards sunken and upwards bulge and are surrounded by the annular pits (1021) along the direction perpendicular to the second plate surface (102).

6. The in-vehicle body floor structure according to claim 5, wherein:

the second reinforcing rib structure further comprises a first strip-shaped protrusion (1023) and a second strip-shaped protrusion (1024) which are arched upwards along the direction perpendicular to the second plate surface (102), the first strip-shaped protrusion (1023) extends along the whole vehicle Y, the second strip-shaped protrusion (1024) is perpendicular to the first strip-shaped protrusion (1023), the second strip-shaped protrusions (1024) are arranged along the whole vehicle Y at intervals, and the distance between every two adjacent second strip-shaped protrusions (1024) is different.

7. The in-vehicle body floor structure according to claim 2, characterized in that:

the two ends of the second plate surface (102) along the Y direction of the whole car are respectively connected with the longitudinal beams (7) of the car body on two sides, and the two ends of the second plate surface (102) along the Y direction of the whole car are arc-shaped which arch towards the longitudinal beams (7) of the car body.

8. The in-vehicle body floor structure according to any one of claims 1 to 7, characterized in that:

the cross section of the body reinforcing plate (3) on the XZ plane of the whole vehicle is wavy.

9. The in-vehicle body floor structure according to claim 8, wherein:

the body reinforcing plate (3) is provided with a third reinforcing structure, and/or the bottom edge of the body reinforcing plate (3) is provided with arched grooves (301) arched upwards along the Z direction of the whole vehicle, and the arched grooves (301) are a plurality of arranged at intervals along the Y direction of the whole vehicle;

the third reinforcing structure comprises at least one of an elliptical boss which is arched upwards along the direction perpendicular to the body reinforcing plate (3), an boss which is arched upwards and the outline of which is arched.

10. A vehicle, characterized in that:

the vehicle is provided therein with the in-vehicle floor structure according to any one of claims 1 to 9.

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